Overview

Features and Benefits

  • Throughput
    1 MSPS (Warp Mode)
    800 kSPS (Normal Mode)
  • INL: ±2.5 LSB Max (±0.0038% of Full Scale)
  • 16-Bit Resolution with No Missing Codes
  • S/(N+D): 90 dB Typ @ 250 kHz
  • Analog Input Voltage Ranges
    Bipolar: ±10 V, ±5 V, ±2.5 V
    Unipolar: 0 V to 10 V, 0 V to 5 V, 0 V to 2.5 V
  • THD: –100 dB Typ @ 250 kHz
  • Both AC and DC Specifications
  • No Pipeline Delay
  • Parallel (8/16 Bits) and Serial 5 V/3 V Interface
  • SPI®/QSPI/MICROWIRE/DSP Compatible
  • Single 5 V Supply Operation
  • Power Dissipation
    112 mW Typical
    15 µW @ 100 SPS

Product Details

The AD7671 is a 16-bit, 1 MSPS, charge redistribution SAR, analog-to-digital converter that operates from a single 5 V power supply. It contains a high speed 16-bit sampling ADC, a resistor input scaler that allows various input ranges, an internal conversion clock, error correction circuits, and both serial and parallel system interface ports.

The AD7671 is hardware factory-calibrated and is comprehensively tested to ensure such ac parameters as signal-to-noise ratio (SNR) and total harmonic distortion (THD), in addition to the more traditional dc parameters of gain, offset, and linearity. 

It features a very high sampling rate mode (Warp), a fast mode (Normal) for asynchronous conversion rate applications, and, for low power applications, a reduced power mode (Impulse) where the power is scaled with the throughput. 

It is fabricated using Analog Devices’ high performance, 0.6 micron CMOS process and is available in a 48-lead LQFP and a tiny 48-lead LFCSP, with operation specified from –40°C to +85°C. 

Product Highlights

  1. Fast Throughput
    The AD7671 is a very high speed (1 MSPS in Warp Mode and 800 kSPS in Normal Mode), charge redistribution, 16-bit SAR ADC.

  2. Single-Supply Operation
    The AD7671 operates from a single 5 V supply, dissipates only 112 mW typical, even lower when a reduced throughput is used with the reduced power mode (Impulse) and a powerdown mode.

  3. Superior INL
    The AD7671 has a maximum integral nonlinearity of 2.5 LSB with no missing 16-bit code.

  4. Serial or Parallel Interface
    Versatile parallel (8 bits or 16 bits) or 2-wire serial interface arrangement compatible with both 3 V or 5 V logic.

Applications

  • Data Acquisition
  • Communication
  • Instrumentation
  • Spectrum Analysis
  • Medical Instruments
  • Process Control

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Product Recommendations

AD7671 Companion Parts

Recommended Digital Isolators

  • For SPI Interface, low power, 5.0 kVrms isolation: ADUM4401.
  • For SPI Interface, lowest power, 2.5 kVrms isolation: ADUM1401.
  • For SPI Interface, enhanced system-level ESD performance, 2.5 kVrms isolation: ADUM3401.
  • For SPI Interface, smallest package, low voltage I/O (1.8 V to 5.5 V): ADUM3481.

Recommended External Voltage References

Recommended Driver Amplifiers

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.